f/mmc-dividend.csv at 19b33d5a18a5f2c124bf1e0a7de3acea9d711f4b

gmp/f

Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs

Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)

2026-08-31 21:59:25 -04:00

3.4 KiB

Raw Blame History

1	Date	Dividends
2	2009-04-07	0.200000
3	2019-10-10	0.455000
4	2023-01-25	0.590000
5	1993-07-06	0.112500
6	1996-07-09	0.133333
7	2011-10-06	0.220000
8	2014-07-09	0.280000
9	2015-07-08	0.310000
10	2019-07-10	0.455000
11	2022-01-26	0.535000
12	2022-10-06	0.590000
13	2000-07-06	0.250000
14	2002-10-10	0.280000
15	1988-01-05	0.100000
16	2003-10-10	0.310000
17	1989-01-05	0.104167
18	1995-10-06	0.133333
19	2013-07-09	0.250000
20	1987-10-02	0.100000
21	1988-04-05	0.100000
22	2002-01-03	0.265000
23	2007-10-11	0.190000
24	2021-10-07	0.535000
25	2022-04-05	0.535000
26	1987-06-29	0.100000
27	1999-04-08	0.200000
28	2007-07-03	0.190000
29	2012-10-09	0.230000
30	1985-07-02	0.050000
31	1990-01-05	0.017333
32	1994-07-05	0.120833
33	2013-10-09	0.250000
34	1992-07-07	0.112500
35	2003-01-02	0.280000
36	2003-04-07	0.280000
37	2010-10-06	0.210000
38	1984-01-04	0.045833
39	1988-07-05	0.100000
40	2001-10-11	0.265000
41	2004-07-02	0.340000
42	2004-10-13	0.340000
43	2011-07-07	0.220000
44	2015-04-08	0.280000
45	2020-10-08	0.465000
46	1985-01-02	0.050000
47	2001-07-05	0.265000
48	1997-10-08	0.166667
49	2006-07-05	0.170000
50	2016-01-21	0.310000
51	2020-01-28	0.455000
52	1988-10-04	0.104167
53	1989-10-04	0.104167
54	2010-07-07	0.200000
55	2025-07-24	0.900000
56	1995-01-05	0.120833
57	2003-07-07	0.310000
58	2007-04-03	0.190000
59	2011-04-06	0.210000
60	2021-01-29	0.465000
61	1985-04-02	0.050000
62	1991-10-07	0.108333
63	1996-04-09	0.133333
64	2005-10-13	0.170000
65	2014-04-08	0.250000
66	2017-01-23	0.340000
67	2022-07-27	0.590000
68	2024-07-25	0.815000
69	1983-07-06	0.045833
70	1991-01-07	0.108333
71	2024-10-04	0.815000
72	2000-04-06	0.225000
73	2014-10-08	0.280000
74	2024-04-03	0.710000
75	1986-04-02	0.062500
76	1994-04-05	0.112500
77	2006-10-12	0.170000
78	1997-01-08	0.150000
79	2006-01-05	0.170000
80	2023-10-05	0.710000
81	1991-07-05	0.108333
82	1993-04-05	0.112500
83	2008-04-04	0.200000
84	2009-10-07	0.200000
85	2018-04-09	0.375000
86	2000-01-06	0.225000
87	2003-12-31	0.310000
88	1999-10-07	0.225000
89	2006-04-05	0.170000
90	2009-01-28	0.200000
91	2009-07-08	0.200000
92	2012-04-05	0.220000
93	2019-01-29	0.415000
94	1996-01-09	0.133333
95	1998-07-08	0.200000
96	2021-07-28	0.535000
97	2019-04-09	0.415000
98	2020-07-24	0.465000
99	2024-01-24	0.710000
100	1996-10-09	0.150000
101	1998-04-07	0.166667
102	1997-07-09	0.166667
103	2000-10-12	0.250000
104	2008-01-24	0.200000
105	1983-01-05	0.045833
106	1995-07-07	0.120833
107	2013-01-24	0.230000
108	2025-04-03	0.815000
109	2025-10-02	0.900000
110	1984-07-03	0.045833
111	2002-04-05	0.265000
112	1998-10-07	0.200000
113	2008-10-14	0.200000
114	2016-07-07	0.340000
115	2017-07-07	0.375000
116	1987-03-31	0.079167
117	1990-10-04	0.108333
118	1994-10-04	0.120833
119	2007-01-22	0.190000
120	2016-04-06	0.310000
121	2018-01-30	0.375000
122	1992-04-07	0.108333
123	1994-01-05	0.018833
124	2015-01-22	0.280000
125	1989-07-05	0.104167
126	1990-07-05	0.108333
127	1998-01-07	0.166667
128	2001-04-05	0.250000
129	2005-03-11	0.170000
130	2012-01-26	0.220000
131	1985-12-31	0.056250
132	1986-07-01	0.062500
133	2018-10-10	0.415000
134	1992-01-07	0.108333
135	2004-04-06	0.310000
136	2014-01-27	0.250000
137	2016-10-06	0.340000
138	2017-10-06	0.375000
139	2021-04-06	0.465000
140	1983-03-23	0.045833
141	1986-10-01	0.079167
142	1999-01-07	0.200000
143	2015-10-07	0.310000
144	2023-04-04	0.590000
145	1984-10-10	0.050000
146	1990-04-05	0.104167
147	1999-07-08	0.225000
148	2005-04-05	0.170000
149	2010-01-27	0.200000
150	2011-01-26	0.210000
151	1984-04-04	0.045833
152	1995-04-05	0.120833
153	2013-04-08	0.230000
154	2023-07-26	0.710000
155	2002-07-05	0.280000
156	2005-07-05	0.170000
157	1997-04-09	0.150000
158	2012-07-09	0.230000
159	2017-04-05	0.340000
160	2018-07-10	0.415000
161	1983-10-05	0.045833
162	1992-10-06	0.112500
163	1989-04-05	0.104167
164	1993-01-05	0.112500
165	1993-10-05	0.112500
166	2010-04-07	0.200000
167	1985-10-09	0.056250
168	1986-12-29	0.079167
169	2008-07-03	0.200000
170	2020-04-07	0.455000
171	2025-01-30	0.815000
172	1991-04-05	0.108333
173	2001-01-04	0.250000

3.4 KiB Raw Blame History

3.4 KiB

Raw Blame History